Mold carrying conveyer



Patented July 28, 1931 UNITED STATES PATENT OFFICE- I EUGENE F. MILTENBERGER, OF. RED BANK, NEW JERSEY, ASSIGNOB TO EASTERN (30R PORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE MOLD CARRYING CONVEYER Application filed February 1, 1930. Serial No. 425,156.

In foundries it is common practice to make the molds in one department or seetiori of the plant and carry them to another department or section where the castings are poured Of course, this does not apply where the casting to be made are except1on ally large, but does apply where the molds are readily transportable. I

It has been proposed tomove the molds 33 along roller conveyers, but so far as I am aware this has not heretofore been entirely successful due in part to the fact that the slight jarring of the mold in moving along the conveyers over the rollers often loosens "1; some. of the sand formin the mold'so that the resultingcasting is defective.

If the rollers of the conveyer be sulficiently long to support the mold across substaiitially its entire width the conveyer itself 20 becomes a source of annoyance because it is diflicult for the workman to step across it in going from one point to another in the plant. y

The main object of the invention is to p 25 secure mobile storage by providing a conveyer mechanism over which the sand molds may be conveyed with the minimum amount of jarring or shaking action and which in-' terferes to the minimum extent with the movement of the workman about the plant. As one important feature of my invention I provide a pair of comparatively narrow roller conveyers over which a workman may readily step and I carry the molds up0n resilent platforms which bridge across both conveyers and are supported by both so that the jarring effect is minimized by the resiliency of the platform.

Any jarring effect caused by the movement of the platform over one set of rollers is in part neutralized by the simultaneous partial'supporting of the platform on the other set of rollers as well asthe resiliency of the platform. 4

A plurality of molds may be placed on a single platform and the platform may be easily moved along the conveyers by a smgle workman walking between the two conveyers; Thus my apparatus interferes to the m mmum extent with the free use of the floor space, reduces to the minimum the shaking loose of sand in the molds, and permits one workman to easily move a plurality of the moldsto the point at which it is desired to pour the castings.

In the accompanying drawings there-is illustrated merely one embodiment of the invention.

Inthese drawings:

Fig. 1 is a top plan view,

Fig. 2 is a transverse section on the line 22 of Fig. 1, and 1 Fig. 3 is a perspective view showing the under side of the platform.

In the form illustrated there are a pair of roller conveyors each including a plurality of comparatively short rollers 10 withftheir axes or pintles mounted in angle irons 11 carried by a suitable base. The height of the rollers and the width of the supporting base 12 is such that a workman may easily step over and the two roller conveyers are mounted parallel and at such distance apart that a workman may walk along between them. In connection with these roller conveyers I employ-a resilient platform 13 which is advantageously made of comparatively thin wooden board and which is adapted to bridge across and rest upon the two roller This platform includes a top or body portion with metal runners 14 upon the under side. These runners or batten's are preferably formedof sheet metal and are spaced apart to the same distance as are the roller 'conveyers and extend transversely of the body of the platform. These each inelude a flat wall 15 with substantially narrow side walls 16 spacing the wall 15 from the body of the platform. At the edges of the side walls 16 flanges 17 may be secured to the body of the platform in any suitable manner as for instance by bolts or screws.

vMl

r The guideways are thus substantially tween the roller conveyers. The guideways Y men walkin l4; bridge across aplurality of the rollers and provide a metal surface for moving upon the rollers so that in case any one roller is slightly higher or lower than the rest there is the minimum jar or shaking effect as the platform passes over it and the resiliency of the platform further cushions any such jar.

If only one or a few molds are carried on the platform they may be spaced midway between the two conveyers so that they have the full effect of the resiliency of the platform. If a large number of molds are carried on the platform they may be arranged along the full length of the platform as indicated by the reference character A in Fig. 2. With this arrangementall of the molds get the benefit of the resiliency of the platform.

Having thus described by invention, what I claim as new and desire to secure by Letters Patent is:

1. A conveyer including a pair of spaced supports, a pair of angle irons upon each support, a series of rollers carried by each pair of angle irons, and a platform having metal runners extending transversely thereof upon the-under surface and adapted for engagement with said rollers to support said platform and facilitate the movement of the latter over said rollers, said runners being substantially channel shaped in cross-section and reinforcing the platform in the direction of the length of said series of rollers.

2. A mold carrying conveyer for use in foundries, including a pair of stationary substantially parallel rollersupports, each having a series of conveying rollers, said supports being spaced apart to form a passageway therebetween. along which a workman may walk, and a resilient platform brldging across and supported by both series of rollers, the rollers and platform being at such height above the floor that the workbetween the two series of rollers may pus said-platform over the rollers Without unduly bending over, and the length of the rollers and the height thereof being such that the workmen may conveniently step over the rollers to the open space between the two series.

\ 3. A mold carrying conveyer for use in foundries, including a pair of stationary substantially parallel roller supports, each having a series of conveying rollers, said supports being spaced a art to form a passageway therebetween a ong which a workman may walk, and a platform bridging across and supported by both series of rollers, the rollers and platform being at such helght above the floor that the workmen walking between the two series of rollers may push said platform over the rollers without unduly bending over, and the length of the rollers and the height thereof being such that the workmen may conven- I iently step over the rollers to the open space between the two series, and said plat form being of a Width at least equal-to three times the diameter of a roller, whereby the weight of the platform and the load carried thereby is distributed over a plurality of rollers, and said platform having reinforc- 'ing strips upon the under surface thereof and extending transversely thereof for engagement with said rollers.

4:. A conveyer including a pair of spaced supports, a pair of angle irons upon each support, a series of rollers carried by each pair of angle irons, and a platform having metal runners extending transversely thereof upon the under surface and adapted .for engagement with said rollers to support said platform and facilitate the movement of the latter over said rollers, said runners reinforcing the platform in the direction of the length of said series of rollers.

Signed at New York, in the county of New York and State of New York, this 29th day of January, A. D. 1930.

EUGENE F. MILTENBERGER. 

